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  /*
   * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   * 
   * Licensed under the Apache License, Version 2.0 (the "License").
   * You may not use this file except in compliance with the License.
   * A copy of the License is located at
   * 
   *  http://aws.amazon.com/apache2.0
   * 
  * or in the "license" file accompanying this file. This file is distributed
  * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
  * express or implied. See the License for the specific language governing
  * permissions and limitations under the License.
  */
 package com.amazonaws.services.datapipeline.model;
 
 
Container for the parameters to the PollForTask operation.

Task runners call PollForTask to receive a task to perform from AWS Data Pipeline. The task runner specifies which tasks it can perform by setting a value for the workerGroup parameter. The task returned can come from any of the pipelines that match the workerGroup value passed in by the task runner and that was launched using the IAM user credentials specified by the task runner.

If tasks are ready in the work queue, PollForTask returns a response immediately. If no tasks are available in the queue, PollForTask uses long-polling and holds on to a poll connection for up to a 90 seconds, during which time the first newly scheduled task is handed to the task runner. To accomodate this, set the socket timeout in your task runner to 90 seconds. The task runner should not call PollForTask again on the same workerGroup until it receives a response, and this can take up to 90 seconds.

 
 public class PollForTaskRequest extends AmazonWebServiceRequest implements SerializableCloneable {

    
The type of task the task runner is configured to accept and process. The worker group is set as a field on objects in the pipeline when they are created. You can only specify a single value for workerGroup in the call to PollForTask. There are no wildcard values permitted in workerGroup; the string must be an exact, case-sensitive, match.

Constraints:
Length: 0 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

 
     private String workerGroup;

    
The public DNS name of the calling task runner.

Constraints:
Length: 1 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

 
     private String hostname;

    
Identity information for the EC2 instance that is hosting the task runner. You can get this value from the instance using http://169.254.169.254/latest/meta-data/instance-id. For more information, see Instance Metadata in the Amazon Elastic Compute Cloud User Guide. Passing in this value proves that your task runner is running on an EC2 instance, and ensures the proper AWS Data Pipeline service charges are applied to your pipeline.
 
     private InstanceIdentity instanceIdentity;

    
The type of task the task runner is configured to accept and process. The worker group is set as a field on objects in the pipeline when they are created. You can only specify a single value for workerGroup in the call to PollForTask. There are no wildcard values permitted in workerGroup; the string must be an exact, case-sensitive, match.

Constraints:
Length: 0 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Returns:
The type of task the task runner is configured to accept and process. The worker group is set as a field on objects in the pipeline when they are created. You can only specify a single value for workerGroup in the call to PollForTask. There are no wildcard values permitted in workerGroup; the string must be an exact, case-sensitive, match.
    public String getWorkerGroup() {
        return ;
    }
    
    
The type of task the task runner is configured to accept and process. The worker group is set as a field on objects in the pipeline when they are created. You can only specify a single value for workerGroup in the call to PollForTask. There are no wildcard values permitted in workerGroup; the string must be an exact, case-sensitive, match.

Constraints:
Length: 0 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Parameters:
workerGroup The type of task the task runner is configured to accept and process. The worker group is set as a field on objects in the pipeline when they are created. You can only specify a single value for workerGroup in the call to PollForTask. There are no wildcard values permitted in workerGroup; the string must be an exact, case-sensitive, match.
    public void setWorkerGroup(String workerGroup) {
        this. = workerGroup;
    }
    
    
The type of task the task runner is configured to accept and process. The worker group is set as a field on objects in the pipeline when they are created. You can only specify a single value for workerGroup in the call to PollForTask. There are no wildcard values permitted in workerGroup; the string must be an exact, case-sensitive, match.

Returns a reference to this object so that method calls can be chained together.

Constraints:
Length: 0 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Parameters:
workerGroup The type of task the task runner is configured to accept and process. The worker group is set as a field on objects in the pipeline when they are created. You can only specify a single value for workerGroup in the call to PollForTask. There are no wildcard values permitted in workerGroup; the string must be an exact, case-sensitive, match.
Returns:
A reference to this updated object so that method calls can be chained together.
    public PollForTaskRequest withWorkerGroup(String workerGroup) {
        this. = workerGroup;
        return this;
    }

    
The public DNS name of the calling task runner.

Constraints:
Length: 1 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Returns:
The public DNS name of the calling task runner.
    public String getHostname() {
        return ;
    }
    
    
The public DNS name of the calling task runner.

Constraints:
Length: 1 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Parameters:
hostname The public DNS name of the calling task runner.
    public void setHostname(String hostname) {
        this. = hostname;
    }
    
    
The public DNS name of the calling task runner.

Returns a reference to this object so that method calls can be chained together.

Constraints:
Length: 1 - 1024
Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Parameters:
hostname The public DNS name of the calling task runner.
Returns:
A reference to this updated object so that method calls can be chained together.
    public PollForTaskRequest withHostname(String hostname) {
        this. = hostname;
        return this;
    }

    
Identity information for the EC2 instance that is hosting the task runner. You can get this value from the instance using http://169.254.169.254/latest/meta-data/instance-id. For more information, see Instance Metadata in the Amazon Elastic Compute Cloud User Guide. Passing in this value proves that your task runner is running on an EC2 instance, and ensures the proper AWS Data Pipeline service charges are applied to your pipeline.

Returns:
Identity information for the EC2 instance that is hosting the task runner. You can get this value from the instance using http://169.254.169.254/latest/meta-data/instance-id. For more information, see Instance Metadata in the Amazon Elastic Compute Cloud User Guide. Passing in this value proves that your task runner is running on an EC2 instance, and ensures the proper AWS Data Pipeline service charges are applied to your pipeline.
        return ;
    }
    
    
Identity information for the EC2 instance that is hosting the task runner. You can get this value from the instance using http://169.254.169.254/latest/meta-data/instance-id. For more information, see Instance Metadata in the Amazon Elastic Compute Cloud User Guide. Passing in this value proves that your task runner is running on an EC2 instance, and ensures the proper AWS Data Pipeline service charges are applied to your pipeline.

Parameters:
instanceIdentity Identity information for the EC2 instance that is hosting the task runner. You can get this value from the instance using http://169.254.169.254/latest/meta-data/instance-id. For more information, see Instance Metadata in the Amazon Elastic Compute Cloud User Guide. Passing in this value proves that your task runner is running on an EC2 instance, and ensures the proper AWS Data Pipeline service charges are applied to your pipeline.
    public void setInstanceIdentity(InstanceIdentity instanceIdentity) {
        this. = instanceIdentity;
    }
    
    
Identity information for the EC2 instance that is hosting the task runner. You can get this value from the instance using http://169.254.169.254/latest/meta-data/instance-id. For more information, see Instance Metadata in the Amazon Elastic Compute Cloud User Guide. Passing in this value proves that your task runner is running on an EC2 instance, and ensures the proper AWS Data Pipeline service charges are applied to your pipeline.

Returns a reference to this object so that method calls can be chained together.

Parameters:
instanceIdentity Identity information for the EC2 instance that is hosting the task runner. You can get this value from the instance using http://169.254.169.254/latest/meta-data/instance-id. For more information, see Instance Metadata in the Amazon Elastic Compute Cloud User Guide. Passing in this value proves that your task runner is running on an EC2 instance, and ensures the proper AWS Data Pipeline service charges are applied to your pipeline.
Returns:
A reference to this updated object so that method calls can be chained together.
    public PollForTaskRequest withInstanceIdentity(InstanceIdentity instanceIdentity) {
        this. = instanceIdentity;
        return this;
    }

    
Returns a string representation of this object; useful for testing and debugging.

Returns:
A string representation of this object.
See also:
java.lang.Object.toString()
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getWorkerGroup() != nullsb.append("WorkerGroup: " + getWorkerGroup() + ",");
        if (getHostname() != nullsb.append("Hostname: " + getHostname() + ",");
        if (getInstanceIdentity() != nullsb.append("InstanceIdentity: " + getInstanceIdentity() );
        sb.append("}");
        return sb.toString();
    }
    
    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;
        
        hashCode = prime * hashCode + ((getWorkerGroup() == null) ? 0 : getWorkerGroup().hashCode()); 
        hashCode = prime * hashCode + ((getHostname() == null) ? 0 : getHostname().hashCode()); 
        hashCode = prime * hashCode + ((getInstanceIdentity() == null) ? 0 : getInstanceIdentity().hashCode()); 
        return hashCode;
    }
    
    @Override
    public boolean equals(Object obj) {
        if (this == objreturn true;
        if (obj == nullreturn false;
        if (obj instanceof PollForTaskRequest == falsereturn false;
        PollForTaskRequest other = (PollForTaskRequest)obj;
        
        if (other.getWorkerGroup() == null ^ this.getWorkerGroup() == nullreturn false;
        if (other.getWorkerGroup() != null && other.getWorkerGroup().equals(this.getWorkerGroup()) == falsereturn false
        if (other.getHostname() == null ^ this.getHostname() == nullreturn false;
        if (other.getHostname() != null && other.getHostname().equals(this.getHostname()) == falsereturn false
        if (other.getInstanceIdentity() == null ^ this.getInstanceIdentity() == nullreturn false;
        if (other.getInstanceIdentity() != null && other.getInstanceIdentity().equals(this.getInstanceIdentity()) == falsereturn false
        return true;
    }
    
    @Override
    public PollForTaskRequest clone() {
        
            return (PollForTaskRequestsuper.clone();
    }
}
    
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